meteorologist mark ta amayo will let us know how -- mark tamayo will let us know how cold it will get. m >>> some people in the east bay woke up early to thunder, lightning and hail. our news crew took pictures of this hail. you can see the roadway was just nearly covered with that icy slush. nothing compared to the wintry scene in the sierra. chains are required. even here we were talking earlier we are seeing snow in places. >> yes. up above 3,000, 3500 feet, towards hamilton, it feels that cold. overnight tonight, into your saturday, cool locations, back down to freezing marks. definitely off to a cool start. we have showers to talk about, mainly down towards the santa cruise mountains. marts of the county as well. closer inspection issue the radar, not a lot to show you. still, a good sign we haveip stability out there. picking out parts of the bay area. so, still, hreupgering rape showers out there. holding on to the rain chances. you can see the chancing dropping. partly cloudy skies and 50 degrees. the key headline, the cold overnight lows, cold enough to have is a frost adviso